(You need to have java enabled in your browser and have the latest JRE from
java.com.
Is java running on my computer? -- test)
This is an experimental map that will display all the landform
waypoints in the field of view using USGS maps or aerial images.
Mouse will be tracked with UTM or lat/lon coordinates (WGS84).
If you click and drag with the left button, you get a distance
tool (meters and miles and bearing)
and you can select either straight line
distance or track distance as you drag the mouse.
Final distance data and area (if tracking) is shown
on the status bar and also logged to the Java console.

If you move the mouse over waypoint marks, the name and description
will popup.
When you left-click, a small red square inidcates the center
of a new map that will be fetched if you click on
New Map.
If you click button3 (or button2) on a waypoint an info popup is displayed,
then a new page will be fetched that describes the waypoint.
You can also choose one of four different map scales and
several map types (topo, image, mapquest), and you can
turn off the waypoint label to reduce clutter.

This requires Java and javascript on the client, and uses PHP
on the host.
You may need to fetch the latest JRE from
java.com.
You might take a look at your browser's Java console.
This display is using WGS84, the UTM 1km grid lines are
approximately correct but will not match NAD27 UTM grid lines on
the USGS map.